CN112192465A

CN112192465A - Tin plating tool

Info

Publication number: CN112192465A
Application number: CN202010987245.3A
Authority: CN
Inventors: 刘欣鑫; 杨帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-01-08

Abstract

The invention discloses a tin plating tool, which relates to the technical field of tin plating piece production and comprises a workbench, wherein a tin plating piece is placed on the upper surface of the workbench, two symmetrically distributed pressing mechanisms are fixedly connected to the upper surface of the workbench, each pressing mechanism comprises a supporting plate, an installation block, a rotating plate, a concave plate, a handle, a lifting block, a clamping block, a connecting block, an extension mechanism, a U-shaped block, a threaded rod, a nut and a pressing block, the two symmetrically distributed installation blocks are fixedly welded to the bottom end of the supporting plate, the pressing mechanism is arranged, the tin plating piece can be quickly pressed by pulling the handle, the working efficiency of subsequent processing operation is improved, the extension mechanism is arranged, the distance between the U-shaped block and the rotating plate can be changed by assembling and inserting the blocks, and the pressing blocks can be matched with the tin plating pieces with different sizes, the applicability of the device is improved.

Description

Tin plating tool

Technical Field

The invention relates to the technical field of tinned parts, in particular to a tinning tool.

Background

Tin plating and its alloy are coatings with good weldability and certain corrosion resistance, and are widely used in electronic components and printed circuit boards. The tin layer is prepared by physical methods such as hot dipping and spraying, and by methods such as electroplating, dip plating and chemical plating, the tin layer is widely applied in industry because of simplicity and feasibility.

During processing production, such as punching or welding, a tinned part needs to be compressed and fixed, the workpiece is clamped by driving a compression block to move through rotation of a threaded rod in the conventional compression mode, however, the workpiece can be clamped by the compression block only through continuous rotation of the threaded rod in the compression mode, the clamping process is low in efficiency, and the clamping is inconvenient to use; the workpiece is compressed by a plurality of compression blocks at present, the compression mode is single, the workpiece cannot be well clamped, meanwhile, the compression force of each compression block on the workpiece is different, and the problem of uneven stress on the surface of the workpiece is easily caused.

Therefore, a tin plating tool is provided.

Disclosure of Invention

The invention aims to provide a tin plating tool which can quickly compress a tin plating piece and conveniently further process the tin plating piece so as to solve part of problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a tin plating frock, includes the workstation, tin plating spare has been placed to the upper surface of workstation, and the hold-down mechanism of two symmetric distributions of the fixed surface of the last fixed surface of workstation fixedly connected with, can compress tightly tin plating spare fast and convenient through hold-down mechanism to the work efficiency of device has been promoted.

The pressing mechanism comprises a supporting plate, an installation block, two rotating plates, two concave plates, a handle, a lifting block, a clamping block, a connecting block, an extension mechanism, a U-shaped block, a threaded rod, nuts and a pressing block, wherein the bottom end of the supporting plate is fixedly welded with the two symmetrically distributed installation blocks, the installation blocks are fixedly connected with a workbench through bolts, the outer side of the supporting plate is rotatably connected with the rotating plate through a rotating shaft, the left side of the rotating plate is fixedly connected with the connecting block, the connecting block is clamped with the U-shaped block through the extension mechanism, the U-shaped block is provided with the threaded rod, the threaded rod penetrates through the lower inner wall of the U-shaped block and is in threaded connection with the U-shaped block, the threaded rod is in threaded connection with the two nuts which are arranged in a matching manner, the bottom end of the threaded rod is fixedly connected with the pressing block, the, the supporting plate is provided with an arc-shaped groove, the radian of the arc-shaped groove takes the rotating centers of the rotating plate and the supporting plate as the circle center, and the inner side of the arc-shaped groove is provided with a vertical groove; the bottom end of the concave plate is connected with the supporting plate in a sliding mode through a sliding pin, and the sliding pin is located in the arc-shaped groove; the rotor plate is located between two concave mould boards to rotate between two concave mould boards and be connected with the chucking piece, the chucking piece is connected with the rotor plate contact, and fixedly connected with promotes the piece between the bottom of two concave mould boards, promotes the below that the piece is located the rotor plate.

The contact surface of nut and U type piece all fills up cyclic annular gasket, through the area of contact of gasket increase nut, has reduced the pressure to U type piece, has protected the part, has promoted the life of device.

Extension mechanism is including plug-in block, joint groove and T type fixture block, one side fixedly connected with joint groove that U type piece is close to the backup pad, one side fixedly connected with T type fixture block of backup pad is kept away from to the connecting block to the both ends of plug-in block are fixedly connected with joint groove and T type fixture block respectively, T type fixture block and the mutual joint in joint groove, in actual operation, we are through assembling the plug-in block, thereby can change the distance between U type piece and the rotor plate, and then can make the compact heap carry out the adaptation with the not tin-plated spare of unidimensional, the suitability of device has been promoted.

The inserting groove is formed in the clamping groove and the T-shaped clamping block, the inserting rod is in threaded connection with the inserting groove in a matched mode, and therefore the inserting groove and the T-shaped clamping block are fixed, and the stability of the power lifting device is improved.

The outer side of the connecting block is fixedly connected with the anti-slip sleeve which is arranged in a matching mode, so that the possibility of sliding of the lifting handle is reduced, and the safety performance of the device is improved.

The bottom fixedly connected with rubber pad of chucking piece has promoted the frictional force of device, and then can compress tightly the rotor plate.

The equal fixedly connected with stopper in both sides of backup pad to carry on spacingly to the movement track of concave template, promoted the stability of device.

A placing groove and an air chamber are arranged in the workbench; a sucker is arranged in the placing groove, and the upper part of the sucker is exposed on the upper surface of the workbench; a first piston is arranged in the air chamber; the first piston is reset through a first spring; one end of the first piston is fastened with the handle through a pull rope, and the pull rope positioned between the first piston and the handle is guided through a guide wheel; one end of the air chamber is communicated with the side part of the sucker through an air pipe.

A water tank, a piston cylinder, a second piston, a second spring, a one-way valve, a guide pipe and a spray head arranged at one end of the guide pipe are arranged beside the placing groove; the other end of the guide pipe is sequentially connected with the bottom of the piston cylinder and a water tank; the guide pipe between the water tank and the piston cylinder and the guide pipe between the piston cylinder and the spray head are both provided with one-way valves; a piston rod of the second piston is vertically upward and extends out of the surface of the workbench, and the second piston rod is higher than the sucker; the second piston is reset through a second spring; the atomizing head is located in the workbench and faces the upper portion of the sucker.

The pressing block comprises a sleeve which is arranged at the lower part of the threaded rod and is provided with a bottom; a buffer spring is arranged between the sleeve and the bottom of the threaded rod; the sleeve is in sliding connection with the lower part of the threaded rod, and the sleeve and the threaded rod are sealed through a sealing ring; and the lower end edges of the sleeves among the pressing blocks are provided with pipelines for balancing air pressure, and all the pipelines are in a communicated state.

Compared with the prior art, the invention has the beneficial effects that:

1. the device is provided with the pressing mechanism, so that the tin-plated parts can be quickly pressed by pulling the handle, the working efficiency of subsequent processing operation is improved, the device is provided with the extension mechanism, and the distance between the U-shaped block and the rotating plate can be changed by assembling the inserting block, so that the pressing block can be adapted to the tin-plated parts with different sizes, and the applicability of the device is improved.

2. According to the invention, the handle is manually pulled to enable the handle to press the rotating plate downwards, so that the handle pulls the first piston to move through the pull wire, and further, the air chamber continuously pumps negative pressure to the sucker, so that the sucker generates adsorption and gripping force on a workpiece, and the fastening of the tinning tool to the workpiece is improved; after the first piston slides, the air chamber can generate enough negative pressure, and the inner diameter of the air pipe is small enough to enable the air chamber to continuously generate air suction for the sucker within half to two minutes, so that continuous suction effect of the sucker is realized.

3. The invention is tied with a thin line on the trachea; scales with Arabic numerals are printed on the thin lines, and the air chamber can continuously exhaust the sucker through the tightness degree of the air pipe tied by the thin lines.

4. According to the invention, the piston II is pressed down by the workpiece, so that water in the piston cylinder at the lower part of the piston II can be extruded, the water is sprayed to the lower surface of the workpiece above the sucker in a foggy form, the workpiece contacts with the sucker after the piston rod is pressed down, foggy water vapor can fully contact with the lower surface of the workpiece at the upper part of the sucker, and partial water vapor can fall into the sucker, so that the sucker can have better sealing property to suck the workpiece tightly, and the workpiece is further fastened.

5. The sleeve barrel is arranged at the position of the pressing block for buffering, so that the pressing block can be reduced or avoided from pressing the workpiece, in addition, the sleeve barrels are communicated through the pipeline, all the pressing blocks can press the workpiece with the same or similar pressing force, and the problem that the local part of the workpiece is pressed down due to overlarge pressing force applied to the workpiece by a local individual pressing block is avoided or reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view of the structure at the concave plate;

FIG. 3 is a schematic structural diagram of a clamping block;

FIG. 4 is a partial schematic view of the elongation mechanism;

FIG. 5 is an enlarged view of the area A in FIG. 1;

FIG. 6 is a schematic view of an arc-shaped slot arrangement on the support plate;

FIG. 7 is an enlarged view of a portion of the inventive table;

FIG. 8 is a schematic view of arrangement of crystal mud on a suction cup;

FIG. 9 is a schematic view of a tether tying the trachea;

FIG. 10 is a schematic view of a cord construction provided with graduations;

in the figure: 1. a work table; 2. mounting blocks; 3. a limiting block; 4. a support plate; 5. a rotating plate; 6. a concave plate; 7. an anti-slip sleeve; 8. a handle; 9. a gasket; 10. a nut; 11. a lifting block; 12. a clamping block; 13. a U-shaped block; 14. a compression block; 15. plating tin on the workpiece; 16. a threaded rod; 17. an insertion block; 18. connecting blocks; 19. a rubber pad; 20. inserting grooves; 21. a clamping groove; 22. a T-shaped fixture block; 23. inserting a rod; 25. a placement groove; 26. an air chamber; 27. a suction cup; 28. a piston I; 29. pulling a rope; 30. a water tank; 31. a piston cylinder; 32. a piston II; 33. a one-way valve; 34. a conduit; 35. a spray head; 36. a sleeve; 37. a buffer spring; 38. a pipeline; 39. and (4) crystal cement.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 10, the present invention provides a technical solution: the utility model provides a tin plating frock, includes workstation 1, tin plating 15 has been placed to the upper surface of workstation 1, and the hold-down mechanism of two symmetric distributions of the fixed surface of the last fixed surface of workstation 1 fixedly connected with, can compress tightly tin plating 15 fast and convenient through hold-down mechanism to the work efficiency of device has been promoted.

The pressing mechanism comprises a supporting plate 4, an installation block 2, a rotating plate 5, a concave plate 6, a handle 8, a lifting block 11, a clamping block 12, a connecting block 18, an extension mechanism, a U-shaped block 13, a threaded rod 16, a nut 10 and a pressing block 14, wherein the bottom end of the supporting plate 4 is fixedly welded with the two installation blocks 2 which are symmetrically distributed, the installation blocks 2 are fixedly connected with the workbench 1 through bolts, the outer side of the supporting plate 4 is rotatably connected with the rotating plate 5 through a rotating shaft, the left side of the rotating plate 5 is fixedly connected with the connecting block 18, the connecting block 18 is clamped with the U-shaped block 13 through the extension mechanism, the U-shaped block 13 is provided with the threaded rod 16, the threaded rod 16 penetrates through the lower inner wall of the U-shaped block 13 and is in threaded connection with the U-shaped block, the threaded rod 16 is in threaded connection with the two nuts 10 which are matched with, the two concave plates 6 are mutually buckled, the top ends of the two concave plates 6 are fixedly connected with a handle 8, an arc-shaped groove 24 is formed in the supporting plate 4, the radian of the arc-shaped groove 24 takes the rotating centers of the rotating plate 5 and the supporting plate 4 as the circle center, and a vertical groove is formed in the inner side of the arc-shaped groove 24; the bottom end of the concave plate 6 is connected with the supporting plate 4 in a sliding way through a sliding pin which is positioned in the arc-shaped groove 24; the rotor plate 5 is located between two concave template 6 to rotate between two concave template 6 and be connected with chucking piece 12, chucking piece 12 is connected with the contact of rotor plate 5, and fixedly connected with promotes piece 11 between two concave template 6's the bottom, promotes piece 11 and is located the below of rotor plate 5.

As one embodiment of the scheme, annular gaskets 9 are padded on the contact surfaces of the nut 10 and the U-shaped block 13, the contact area of the nut 10 is increased through the gaskets 9, the pressure on the U-shaped block 13 is reduced, parts are protected, and the service life of the device is prolonged.

As one embodiment of the present case, the extension mechanism includes an insertion block 17, a clamping groove 21 and a T-shaped clamping block 22, one side of the U-shaped block 13 close to the supporting plate 4 is fixedly connected with the clamping groove 21, one side of the connecting block 18 far away from the supporting plate 4 is fixedly connected with the T-shaped clamping block 22, two ends of the insertion block 17 are respectively and fixedly connected with the clamping groove 21 and the T-shaped clamping block 22, and the T-shaped clamping block 22 and the clamping groove 21 are clamped with each other.

As one embodiment of the present disclosure, the insertion grooves 20 are formed in the clamping groove 21 and the T-shaped fixture block 22, and the insertion grooves 20 are connected with the insertion rods 23 in a threaded manner, so that the insertion grooves 20 and the T-shaped fixture block 22 are fixed, and the stability of the force device is improved.

As one embodiment of the scheme, the anti-slip sleeve 7 which is arranged in a matched mode is fixedly connected to the outer side of the connecting block 18, so that the possibility that the lifting handle 8 slides down is reduced, and the safety performance of the device is improved.

As one embodiment of the present disclosure, a rubber pad 19 is fixedly connected to the bottom end of the clamping block 12, so as to increase the friction force of the device, and further compress the rotating plate 5.

As one embodiment of the scheme, the two sides of the supporting plate 4 are fixedly connected with the limiting blocks 3, so that the motion track of the concave plate 6 is limited, and the stability of the device is improved.

As one embodiment of the present disclosure, a placing groove 25 and an air chamber 26 are arranged in the workbench 1; a suction cup 27 is arranged in the placing groove 25, and the upper part of the suction cup 27 is exposed on the upper surface of the workbench 1; a first piston 28 is arranged in the air chamber 26; the first piston 28 is reset through a first spring; one end of the first piston 28 is fastened with the handle 8 through a pull rope 29, and the pull rope 29 between the first piston 28 and the handle 8 is guided through a guide wheel; one end of the air chamber 26 is communicated with the side of the suction cup 27 through an air pipe.

When the device works, the handle 8 is manually pulled to enable the handle 8 to press the rotating plate 5 downwards, so that the handle 8 pulls the first piston 28 to move through the pull wire, the air chamber 26 pumps negative pressure to the sucker 27, the sucker 27 generates adsorption and gripping force on the workpiece 15, and the fastening of the tinning tool to the workpiece 15 is improved; after the first piston 28 slides, the air chamber 26 can generate enough negative pressure, the inner diameter of the air pipe is set according to the size of the air chamber 26, and the air pressure generated when the first piston 28 moves from one end of the air chamber 26 to the other end enables the air chamber 26 to continuously generate air suction for the suction cup 27 within half to two minutes, so that the continuous suction effect of the suction cup 27 is realized; wherein, the trachea is tied with a rope line; scales with Arabic numerals are printed on the cord, and the air suction time of the air chamber 26 to the suction disc 27 is realized by fastening the tightness degree of the air pipe through the cord; the scales on the rope line can enable a person to know the degree of tightness of the rope line for tying the air pipe, the specific size of the tied inner diameter of the air pipe does not need to be determined deliberately, the pull rope 29 is an elastic rope, the time for the air chamber 26 to continuously generate air suction action on the suction disc 27 can be known only by checking the time of the piston 28 moving from one end of the air chamber 26 to the other end in the air chamber 26 made of transparent material in a timing mode; the position of the air pipe tying rope line is exposed outside the workbench 1; in addition, the degree of tightness of the fastening of the rope on the trachea at the moment can be known by subtracting the scale numbers on the position of the rope wound by a circle of the trachea with the required length.

As one embodiment of the present disclosure, a water tank 30, a piston cylinder 31, a second piston 32, a second spring, a check valve 33, a conduit 34, and a spray head 35 disposed at one end of the conduit 34 are disposed beside the placing tank 25; the other end of the guide pipe 34 is sequentially connected with the bottom of the piston cylinder 31 and the water tank 30; a one-way valve 33 is arranged on a conduit 34 between the water tank 30 and the piston cylinder 31 and a conduit 34 between the piston cylinder 31 and the spray head 35; the piston rod of the second piston 32 is vertically upward and extends out of the surface of the workbench 1, and the rod of the second piston 32 is higher than the height of the sucking disc 27; the second piston 32 is reset through a second spring; the spray head 35 is located in the table 1 with the spray head 35 facing the upper part of the suction cup 27.

During operation, when the workpiece 15 is placed on the workbench 1, the workpiece 15 presses the second piston 32 downwards, water in the piston cylinder 31 at the lower part of the second piston 32 can be extruded, so that the water is sprayed to the lower surface of the workpiece 15 above the suction cup 27 in a foggy form, and in operation, the workpiece 15 contacts the suction cup 27 after contacting and pressing the piston rod downwards, foggy water vapor can fully contact the lower surface of the workpiece 15 at the upper part of the suction cup 27 and part of the water vapor falls into the suction cup 27, so that the suction cup 27 can have better sealing performance to suck the workpiece 15 tightly, and further the workpiece 15 is fastened; when the workpiece 15 is taken down, the second piston 32 is reset under the action of the second spring, and the suction force generated when the second piston 32 is reset can suck part of water in the water tank 30 into the bottom of the piston cylinder 31 for storage so as to be sprayed by the spray head 35 next time.

As one example of this case, the pressing block 14 includes a sleeve 36 with a bottom and disposed below the threaded rod 16; a buffer spring 37 is arranged between the sleeve 36 and the bottom of the threaded rod 16; the sleeve 36 is in sliding connection with the lower part of the threaded rod 16, and the sleeve 36 and the threaded rod 16 are sealed through a sealing ring; the lower end edge of the sleeve 36 between all the compaction blocks 14 is provided with a pipeline 38 for balancing air pressure, and all the pipelines 38 are in a communication state.

When the tool works, all the pipelines 38 are long enough to meet the requirement of the movement of the whole tool part; the sleeves 36 for buffering are arranged at the pressing blocks 14, so that the pressing blocks 14 can reduce or avoid crushing the workpiece 15, and in addition, the sleeves 36 are communicated through the pipeline 38, so that all the pressing blocks 14 can press the workpiece 15 with the same or similar pressing force, and the workpiece 15 can be prevented or reduced from being crushed partially due to the fact that the pressing force applied to the workpiece 15 by local individual pressing blocks 14 is too large.

As one embodiment of the present disclosure, the suction cup 27 is connected to the bottom of the placing groove 25 through a supporting spring; the damping effect on the workpiece 15 during processing can be realized through the action of the supporting spring and the sucking disc 27, and the noise generated by vibration during the processing of the workpiece 15 is reduced;

as one embodiment of the present disclosure, a ring of annular grooves is disposed on the inner edge of the suction cup 27; crystal mud 39 is filled in the annular groove; when the surface of the workpiece 15 is slightly uneven, so that a gap is formed between the suction cup 27 and the workpiece 15, the crystal mud 39 can be gradually adsorbed to be close to the gap between the suction cup 27 and the workpiece 15 under the action of suction force generated in the suction cup 27, so that the gap is blocked, and the suction effect of the suction cup 27 on the workpiece 15 is improved;

in one embodiment of the present disclosure, the spray head 35 sprays water to generate water, so that the viscosity of the crystal slurry 39 can be increased, and the suction action of the suction cup 27 on the workpiece 15 can be improved.

As one embodiment of the scheme, the crystal mud is jelly-shaped and sticky soft mud prepared by mixing a leguminous plant extract, borax and white mucilage.

As one embodiment of the present disclosure, an air pressure sensor is disposed in the sleeve 36; the pressure sensor is used for detecting the air pressure in the sleeve 36, the top end of the threaded rod 16 is provided with a pressure gauge and an alarm beside the pressure gauge, the pressure gauge is used for displaying the pressure detected by the pressure sensor, and when the pressure detected by the pressure sensor exceeds a standard value, a signal is synchronously transmitted to the microcomputer, so that the microcomputer controls the alarm to alarm; the microcomputer can automatically calculate the minimum deformation pressure which can be borne by the workpiece 15 by inputting parameters such as the composition, the thickness and the like of the material of the workpiece 15, so as to generate the air pressure standard value of the minimum deformation which can be borne by the current workpiece 15; wherein, the microcomputer is a conventional technical means according to the automatic calculation of the parameters; the air pressure sensor, the alarm, the microcomputer, the pressure gauge and the like are all electrically connected; if a pressure sensor is directly arranged at the bottom of the sleeve 36, the pressure sensor is easily crushed; and meanwhile, the pressure standard value cannot be adaptively adjusted according to the performance of the material of the workpiece 15.

The working principle is as follows: before the device is used, the clamping block 12 is manually shifted to enable the clamping block 12 to loosen the extruded rotating plate 5, the concave plate 6 falls under the action of gravity, the sliding pin slides into the arc-shaped groove 24 from the vertical groove, then the handle 8 is pulled outwards, the sliding pin slides in the arc-shaped groove 24, the concave plate 6 can drive the connecting block 18 to rotate outwards under the driving of the lifting block 11, then the tin-plated piece 15 is placed on the workbench 1, the handle 8 is pushed, the U-shaped block 13 naturally falls, the sliding pin slides in the arc-shaped groove 24 and slides to the lower part of the vertical groove, when the clamping block 12 clamps the rotating plate 5, the sliding pin moves upwards to the vertical groove and is matched with the clamping block 12 to realize the rotating locking of the concave plate 6, and when the rotating plate 5 is clamped by the clamping block 12, the U-shaped block 13 and the pressing block 14 can be further driven to press the tin-plated piece 15, so that the subsequent processing operation on the rotating plate is convenient, and the working efficiency of the device is improved, and the device is equipped with extension mechanism, and we can change the distance between U type piece 13 and rotor plate 5 through assembling the plug-in block 17, and then can make compact heap 14 can carry out the adaptation with the tinned component 15 of equidimension not, have promoted the suitability of device.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations and positional relationships based on the drawings, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the designated device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being connected fixedly, detachably, integrally, mechanically, indirectly through an intermediate medium, and specifically defined in the present application, the above embodiments of the present disclosure need not be implemented in all cases, and have problems or major defects, and those skilled in the art may choose not to implement them, and the contents of the problems or major defects described may be discarded; in addition, the beneficial effects of the scheme and the problems related in the background technology are not required to be realized one by one.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tin plating frock, includes workstation (1), its characterized in that: the tin-plated part (15) is placed on the upper surface of the workbench (1), two pressing mechanisms which are symmetrically distributed are fixedly connected to the upper surface of the workbench (1), each pressing mechanism comprises a supporting plate (4), an installation block (2), a rotating plate (5), a concave plate (6), a handle (8), a lifting block (11), a clamping block (12), a connecting block (18), an extension mechanism, a U-shaped block (13), a threaded rod (16), a nut (10) and a pressing block (14), the two installation blocks (2) which are symmetrically distributed are fixedly welded to the bottom end of the supporting plate (4), the installation blocks (2) are fixedly connected with the workbench (1) through bolts, the rotating plate (5) is rotatably connected to the outer side of the supporting plate (4) through a rotating shaft, the connecting block (18) is fixedly connected to the left side of the rotating plate (5), and the U-shaped block (13) is clamped to the connecting block (18), the tin plating device is characterized in that a threaded rod (16) is arranged on the U-shaped block (13), the threaded rod (16) penetrates through the lower inner wall of the U-shaped block (13) and is in threaded connection with the lower inner wall of the U-shaped block (13), two nuts (10) which are arranged in a matched mode are in threaded connection with the threaded rod (16), a pressing block (14) is fixedly connected to the bottom end of the threaded rod (16), the pressing block (14) is in contact connection with a tin plating piece (15), the two concave plates (6) are in total, the two concave plates (6) are buckled with each other, a lifting handle (8) is fixedly connected to the top end of each concave plate (6), an arc-shaped groove (24) is formed in the supporting plate (4), the radian of the arc-shaped groove (24) takes the rotating centers of; the bottom end of the concave plate (6) is connected with the supporting plate (4) in a sliding way through a sliding pin, and the sliding pin is positioned in the arc-shaped groove (24); rotor plate (5) are located between two concave template (6) to rotate between two concave template (6) and be connected with chucking piece (12), chucking piece (12) and rotor plate (5) contact are connected, and fixedly connected with promotes piece (11) between the bottom of two concave template (6), promote the below that piece (11) are located rotor plate (5).

2. The tin plating tool of claim 1, wherein: and annular gaskets (9) are padded on the contact surfaces of the nut (10) and the U-shaped block (13).

3. The tin plating tool of claim 1, wherein: extension mechanism is including plug-in connection piece (17), joint groove (21) and T type fixture block (22), one side fixedly connected with joint groove (21) that U type piece (13) are close to backup pad (4), and one side fixedly connected with T type fixture block (22) of backup pad (4) are kept away from in connecting block (18) to the both ends difference fixedly connected with joint groove (21) and T type fixture block (22) of plug-in connection piece (17), T type fixture block (22) and joint groove (21) joint each other.

4. The tin plating tool of claim 3, wherein: inserting grooves (20) are formed in the clamping grooves (21) and the T-shaped clamping blocks (22), and inserting rods (23) matched with the inserting grooves (20) are connected in a threaded mode.

5. The tin plating tool of claim 1, wherein: the outer side of the connecting block (18) is fixedly connected with an anti-slip sleeve (7) which is matched with the connecting block.

6. The tin plating tool of claim 1, wherein: the bottom end of the clamping block (12) is fixedly connected with a rubber pad (19).

7. The tin plating tool of claim 1, wherein: the two sides of the supporting plate (4) are fixedly connected with limiting blocks (3).

8. The tin plating tool of claim 1, wherein: a placing groove (25) and an air chamber (26) are arranged in the workbench (1); a sucker (27) is arranged in the placing groove (25), and the upper part of the sucker (27) is exposed on the upper surface of the workbench (1); a first piston (28) is arranged in the air chamber (26); the first piston (28) is reset through a first spring; one end of the first piston (28) is fastened with the handle (8) through a pull rope (29), and the pull rope (29) between the first piston (28) and the handle (8) is guided through a guide wheel; one end of the air chamber (26) is communicated with the side part of the suction cup (27) through an air pipe.

9. The tin plating tool of claim 8, wherein: a water tank (30), a piston cylinder (31), a second piston (32), a second spring, a one-way valve (33), a guide pipe (34) and a spray head (35) arranged at one end of the guide pipe (34) are arranged beside the placing groove (25); the other end of the guide pipe (34) is sequentially connected with the bottom of the piston cylinder (31) and the water tank (30); a one-way valve (33) is arranged on a guide pipe (34) between the water tank (30) and the piston cylinder (31) and a guide pipe (34) between the piston cylinder (31) and the spray head (35); a piston rod of the second piston (32) is vertically upward and extends out of the surface of the workbench (1), and the rod of the second piston (32) is higher than the sucker (27); the second piston (32) is reset through a second spring; the spray head (35) is positioned in the workbench (1) and the spray head (35) faces the upper part of the sucker (27).

10. The tin plating tool of claim 9, wherein: the pressing block (14) comprises a sleeve (36) which is arranged at the lower part of the threaded rod (16) and is provided with a bottom; a buffer spring (37) is arranged between the sleeve (36) and the bottom of the threaded rod (16); the lower parts of the sleeve (36) and the threaded rod (16) are in sliding connection, and the sleeve (36) and the threaded rod (16) are sealed through a sealing ring; and pipelines (38) for balancing air pressure are arranged at the lower end edges of the sleeves (36) among the compression blocks (14), and all the pipelines (38) are in a communicated state.